International Astronomy Olympiad (IAO)

Contest Date:  September 22 – November 22

The International Olympiad on Astronomy and Astrophysics (IOAA) is an annual, international competition for high school students. It is one of the most prestigious science olympiads in the world, bringing together top students from over 50 countries. The competition is designed to test advanced knowledge and creative problem-solving skills in the fields of astronomy and astrophysics.

 This competition is by invitation only.